.container
  width 1200px
  margin 0 auto
  box-sizing border-box

.m-tit
  text-align center
  font-size 24px
  padding 25px

.selector-wrapper
  border 1px solid #dddddd
  padding 4px 12px
  .selector
    display flex
    padding 8px 12px
    & + .selector
      border-top 1px dashed #dddddd
    .selector-title
      margin-right 5px
    .selector-items
      flex 1
      .item
        display inline-block
        margin-right 15px
        cursor pointer
        &:hover
          text-decoration underline
        &.active
          color #ff0000

.item-wrapper
  overflow hidden
  .item
    float left
    display none
    border 1px solid #dddddd
    box-sizing border-box
    margin 15px
    width 270px
    height 150px
    &.active
      display block
    .item-tit
      padding 20px
      font-size 16px
